ACS725LLCTR-20AU-S

$1.62

Description：3.3V VCC ISOLATED CURRENT SENSOR
Series：-
Mfr：Allegro MicroSystems
Package：Bulk

SKU:00432116c2fb Category: Current Sensors Brand: Allegro MicroSystems

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Product introduction

ACS725LLCTR-20AU-S is listed in the Current Sensors range at ChipApex. The manufacturer field lists Allegro MicroSystems. Its product description is 3.3V VCC ISOLATED CURRENT SENSOR. Review the specifications below when checking this part for your BOM.

Current Sensors specifications for ACS725LLCTR-20AU-S

Description：3.3V VCC ISOLATED CURRENT SENSOR
Series：-
Mfr：Allegro MicroSystems
Package：Bulk
For Measuring：AC/DC
Sensor Type：Hall Effect, Differential
Current - Sensing：20A
Number of Channels：1
Output：Ratiometric, Voltage
Sensitivity：132mV/A
Frequency：DC ~ 120kHz
Linearity：±1.5%
Accuracy：±4%
Voltage - Supply：3V ~ 3.6V
Response Time：4µs
Current - Supply (Max)：14mA
Operating Temperature：-40°C ~ 150°C
Grade：Automotive
Qualification：AEC-Q100
Polarization：Unidirectional
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC

Current Sensors datasheet and documents for ACS725LLCTR-20AU-S

ACS725LLCTR-20AU-S

Current Sensors Overview

The ACS725LLCTR-20AU-S is a board-mount current sensor IC from Allegro MicroSystems, designed for 3.3V platforms. It utilizes differential Hall technology to provide galvanic isolation and accurate current sensing. The device features an analog voltage output with a sensitivity of 132mV/A and supports bidirectional measurement up to 20A. Key electrical parameters include a response time of 4µs and a frequency range extending to 120kHz. It operates within a supply voltage range of 3V to 3.6V and functions across a temperature range of -40°C to +150°C.

Current Sensors Feature Summary

Integrates differential Hall effect technology for high-precision current sensing
Provides galvanic isolation between the current path and signal output
Delivers ratiometric analog voltage output proportional to sensed current

Current Sensors Applications

Automotive battery management systems
Motor control applications
Power supply monitoring circuits

Current Sensors Procurement Notes

Verify that the specific suffix 'S' denotes unidirectional operation, as this differs from other variants in the series. Confirm the package type matches the required PCB footprint. Ensure the supply voltage aligns with the 3V to 3.6V specification. Check for AEC-Q100 qualification if automotive reliability is required. Validate humidity sensitivity handling procedures during assembly.

Current Sensors Selection Notes

Select this component when unidirectional current sensing is sufficient for the application. The 132mV/A sensitivity offers higher resolution compared to lower-sensitivity variants. Consider the 8-SOIC package dimensions for layout constraints. Evaluate the 120kHz bandwidth against the switching frequencies of the target system. Ensure the operating temperature range meets the environmental requirements.

Current Sensors Part Context

This part belongs to the ACS725 family of integrated current sensors. The family is characterized by its use of Hall effect technology for isolated current measurement. Variants within the series differ primarily in current ratings, sensitivity, and directionality (unidirectional vs. bidirectional). The ACS725 series is optimized for low-voltage 3.3V systems.